中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

7 records (took 0.019 seconds)

    2.
    发明专利
    未知

    公开(公告)号：DE19603201A1

    公开(公告)日：1997-07-31

    申请号：DE19603201

    申请日：1996-01-30

    Applicant: BASF AG

    Inventor： PACIELLO ROCCO DR ,  KNEUPER HEINZ-JOSEF DR ,  GEISLER BERNHARD DR ,  ROEPER MICHAEL PROF DR

    IPC: B01J31/22 ,  B01J31/16 ,  B01J31/18 ,  B01J31/40 ,  C07B61/00 ,  C07C27/22 ,  C07C29/16 ,  C07C31/125 ,  C07C45/50 ,  C07C45/80 ,  C07C47/02 ,  C07D213/38 ,  C07D213/74 ,  C07C31/02 ,  C07D221/00 ,  C08G73/02 ,  C08L23/20

    Abstract: A process is proposed for producing aldehydes and alcohols by hydroformylation of olefins with more than three carbon atoms. The process involves a hydroformylation stage, in which the olefin is hydroformylated at a pressure of 50-1000 bar and a temperature of 50-180 DEG C with the aid of a rhodium catalyst dissolved in an homogeneous reaction medium, and a catalyst recovery stage, in which the rhodium catalyst is extracted. The process involves the following steps: (a) hydroformylation carried out in the presence of a rhodium complex containing a ligand in the form of a phosphorous-free multidentate organic nitrogen compound capable of forming complexes with group VIII metals, said nitrogen compound containing in addition at least one tertiary nitrogen rest which can be protonated with a weak acid; (b) extraction of the product from the hydroformylation stage, where appropriate after separation or partial separation of the aldehydes and alcohols, using an aqueous solution of a distillable acid; (c) heat treatment of the aqueous acid extract in the presence of an organic solvent or solvent mixture which is inert under the hydroformylation conditions, the aqueous acid being distilled off, in order to de-protonate the complex and convert it to the organic phase; and (d) recycling of the organic phase containing the catalyst complex into the hydroformylation stage.

    5.
    发明专利
    未知

    公开(公告)号：DE19605435A1

    公开(公告)日：1997-08-21

    申请号：DE19605435

    申请日：1996-02-14

    Applicant: BASF AG

    Inventor： GEISLER BERNHARD DR ,  KNEUPER HEINZ-JOSEF DR ,  ROEPER MICHAEL PROF DR ,  PACIELLO ROCCO DR ,  OPPENLAENDER KNUT DR ,  GUENTHER WOLFGANG DR

    IPC: B01J31/40 ,  C07C29/16 ,  C07C45/50 ,  C07C45/80 ,  C07F9/38 ,  C08G73/02 ,  C07C47/02 ,  B01J31/20 ,  B01J38/58

    Abstract: Described is a method of preparing aldehydes, or aldehydes and alcohols, by the hydroformylation of olefins with more than three carbon atoms, the method including a hydroformylation stage in which the olefin is hydroformylated at a pressure of 50 to 1,000 bar and a temperature of 50 to 180 DEG C by means of a rhodium catalyst dissolved in a homogeneous reaction medium and a catalyst-recovery stage in which the rhodium catalyst is extracted using an aqueous solution of a complexing agent, the alcohol and/or alkdehyde is isolated from the extracted hydroformylation products, the aqueous rhodium-containing extract is carbonylated in the presence of carbon monoxide, synthesis gas or a gas mixture containing carbon monoxide at a pressure of 50 to 1,000 bar and a temperature of 50 to 180 DEG C, the carbonylation products separated into an organic phase containing most of the rhodium and an aqueous phase containing the complexing agent and the organic phase is fed back to the hydroformylation stage, the rhodium catalyst obtained from the products of the hydroformylation stage being extracted with an aqueous solution of a water-soluble polymer, without any sulphonic acid groups, capable of forming a complex with rhodium.

Patent Agency Ranking